code: def forward(self, x):
      x = x.repeat(
          (1, 4, 1, 1)
      )  # Weird concat of WGAN-GPs upsampling process.
      out = self.model(x)
      return out
  
imports: from torch import nn
  import torch.nn.functional
label_desc: Use image node_id 2 for calling the UpsampleConv obj's underlying member method code with example usage: obj.forward(x) and returns: out